Why is walking in the woods so good for you?

Scientists have advanced a wide range of theories about the specific physical and mental benefits nature can provide, ranging from clean air and lack of noise pollution to the apparent immune-boosting effects of a fine mist of “wood essential oils.” But the most powerful benefits, a new study suggests, may result from the way trees and birds and sunsets gently tug – but never grab – at our attention. Read more: Article in Globe and Mail, May 28, 2012